Ejection type seed sowing method and ejection type seed sowing unmanned aerial vehicle applying same

Abstract

The invention relates to the technical field of agricultural aviation, in particular to an ejection type seed sowing method and an ejection type seed sowing unmanned aerial vehicle applying the same, and aims to solve the problems that in the prior art, when seed sowing is conducted by an unmanned aerial vehicle, seed sowing is prone to be interfered by external airflow such as rotor wind, seed sowing is inaccurate, and the seed sowing requirement of line forming and hole forming cannot be well met. The invention provides the sowing method of the ejection type sowing unmanned aerial vehicle. The sowing method comprises the steps of parameter calibration; centralized seed supply; seed distribution by a seed distributor; and ejection type seed sowing. The invention further provides the ejection type seed sowing unmanned aerial vehicle applied to the ejection type seed sowing method.

Description

technical field [0001] The present invention relates to the technical field of agricultural aviation, and more specifically, to a row-type sowing method and a row-type sowing unmanned aerial vehicle applying the method. Background technique [0002] In recent years, with the continuous advancement of UAV technology, the accuracy and stability of its flight routes have been continuously improved, and its application in agricultural production has become more and more extensive. Compared with ground machinery, the use of drones for sowing has better trafficability, avoids vehicle trapping and damage to field ridges, and drones have fast seeding speed and simple operation. They are gradually being accepted by farmers and have become a new The unique sowing method is especially suitable for paddy fields with small plots, large height differences, and deep mud feet in southern my country. [0003] At present, the sowing operation of drones is mainly sowing, and the seeding device...

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned drone sowing operation has improved the uniformity of sowing compared with manual sowing, it still has the following shortcomings: 1) After the seeds are discharged from the seed metering device, due to the interference of the rotor wind, the position of the seeds is uncontrollable, and the seeds fall evenly The performance is not good enough; 2) The seeds fall on the surface, which is easy to be eaten by birds and rodents or washed by rain, resulting in seedling shortage; 3) The seed meter is easy to arch and block; It is difficult to form rows and holes, the poor ventilation and air permeability of crops is easy to breed diseases and insect pests, and it is not convenient for field management during the growth period, etc.

This device adopts the friction wheel to accelerate the seeds, which reduces the interference of the rotor wind on the whereabouts of the seeds, but the device has the following disadvantages: 1) there are many types of crops, and there are differences in the external dimensions of the seeds of different varieties of the same crop, and the size and shape of the seeds of the same variety are different. It is also difficult to achieve the same, and the distance between the friction wheels in the prior art cannot be adjusted adaptively with the different shapes of the seeds, which may easily cause damage or blockage; The limit is large, and the seeds cannot be lined up into the friction wheel, which is prone to the problem of seed jamming; 3) During operation, it is necessary to adjust the motor according to the pitch angle, so it is difficult to achieve precise sowing

Although this method can increase the initial velocity of the seed exit, the acceleration range is limited, and it is still susceptible to external wind interference such as the rotor wind field when the seeds are dropped, and the structure is complex, and the weight of the whole machine is relatively large. For UAVs with high load requirements Poor applicability

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